<template>
     <div class="app-container">
   
       <!-- 工具条 -->
       <div class="tools-div">
         <el-button type="success" icon="el-icon-plus" size="mini" @click="add()">添 加</el-button>
       </div>
       <el-table
         :data="sysMenuList"
         style="width: 100%;margin-bottom: 20px;margin-top: 10px;"
         row-key="id"
         border
         :default-expand-all="false"
         :tree-props="{children: 'children'}">
   
         <el-table-column prop="name" label="菜单名称" width="160"/>
         <el-table-column label="图标">
           <template slot-scope="scope">
             <i :class="scope.row.icon"></i>
           </template>
         </el-table-column>
         <el-table-column prop="perms" label="权限标识" width="160"/>
         <el-table-column prop="path" label="路由地址" width="120"/>
         <el-table-column prop="component" label="组件路径" width="160"/>
         <el-table-column prop="sortValue" label="排序" width="60"/>
         <el-table-column label="状态" width="80">
           <template slot-scope="scope">
             <el-switch
               v-model="scope.row.status === 1" :disabled="true">
             </el-switch>
           </template>
         </el-table-column>
         <el-table-column prop="createTime" label="创建时间" width="160"/>
         <el-table-column label="操作" width="280" align="center" fixed="right">
           <template slot-scope="scope">
             <el-button type="success" v-if="scope.row.type !== 2" icon="el-icon-plus" size="mini" @click="add(scope.row)" title="添加下级节点"/>
             <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row)" title="修改"/>
             <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" :disabled="scope.row.children.length > 0"/>
             
           </template>
         </el-table-column>
       </el-table>
        <!-- 添加或修改的表单 -->
       <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%" >
         <el-form ref="dataForm" :model="sysMenu" label-width="150px" size="small" style="padding-right: 40px;">
           <el-form-item label="上级部门" v-if="sysMenu.id === ''">
             <el-input v-model="sysMenu.parentName" :disabled="true"/>
           </el-form-item>
           <el-form-item label="菜单类型" prop="type">
             <el-radio-group v-model="sysMenu.type" :disabled="typeDisabled">
               <el-radio :label="0" :disabled="type0Disabled">目录</el-radio>
               <el-radio :label="1" :disabled="type1Disabled">菜单</el-radio>
               <el-radio :label="2" :disabled="type2Disabled">按钮</el-radio>
             </el-radio-group>
           </el-form-item>
           <el-form-item label="菜单名称" prop="name">
             <el-input v-model="sysMenu.name"/>
           </el-form-item>
           <el-form-item label="图标" prop="icon" v-if="sysMenu.type !== 2">
             <el-select v-model="sysMenu.icon" clearable>
               <el-option v-for="item in iconList" :key="item.class" :label="item.class" :value="item.class">
               <span style="float: left;">
                <i :class="item.class"></i>  <!-- 如果动态显示图标，这里添加判断 -->
               </span>
                 <span style="padding-left: 6px;">{{ item.class }}</span>
               </el-option>
             </el-select>
           </el-form-item>
           <el-form-item label="排序">
             <el-input-number v-model="sysMenu.sortValue" controls-position="right" :min="0" />
           </el-form-item>
           <el-form-item prop="path">
                 <span slot="label">
                   <el-tooltip content="访问的路由地址，如：`sysUser`" placement="top">
                   <i class="el-icon-question"></i>
                   </el-tooltip>
                   路由地址
                 </span>
             <el-input v-model="sysMenu.path" placeholder="请输入路由地址" />
           </el-form-item>
           <el-form-item prop="component" v-if="sysMenu.type !== 0">
                 <span slot="label">
                   <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
                   <i class="el-icon-question"></i>
                   </el-tooltip>
                   组件路径
                 </span>
             <el-input v-model="sysMenu.component" placeholder="请输入组件路径" />
           </el-form-item>
           <el-form-item v-if="sysMenu.type === 2">
             <el-input v-model="sysMenu.perms" placeholder="请输入权限标识" maxlength="100" />
             <span slot="label">
                   <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(hasAuthority('bnt.sysRole.list'))" placement="top">
                   <i class="el-icon-question"></i>
                   </el-tooltip>
                   权限字符
                 </span>
           </el-form-item>
           <el-form-item label="状态" prop="type">
             <el-radio-group v-model="sysMenu.status">
               <el-radio :label="1">正常</el-radio>
               <el-radio :label="0">停用</el-radio>
             </el-radio-group>
           </el-form-item>
         </el-form>
         <span slot="footer" class="dialog-footer">
           <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
           <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
         </span>
       </el-dialog>
     </div>
   </template>
   
   
   <script>
   import api from '@/api/system/sysMenu'
   const defaultForm = {
     id: '',
     parentId: '',
     name: '',
     type: 0,
     path: '',
     component: '',
     perms: '',
     icon: '',
     sortValue: 1,
     status: 1
   }
   export default {
     // 定义数据
     data() {
       return {
         sysMenuList: [], //菜单树列表
   
         typeDisabled: false, //菜单类型是否可点击
         type0Disabled: false,
         type1Disabled: false,
         type2Disabled: false,
         dialogTitle: '', //添加节点时的标题
   
         dialogVisible: false,
         sysMenu: defaultForm,
   
         iconList: [
           {
             class: "el-icon-s-tools",
           },
           {
             class: "el-icon-s-custom",
           },
           {
             class: "el-icon-setting",
           },
           {
             class: "el-icon-user-solid",
           },
           {
             class: "el-icon-s-help",
           },
           {
             class: "el-icon-phone",
           },
           {
             class: "el-icon-s-unfold",
           },
           {
             class: "el-icon-s-operation",
           },
           {
             class: "el-icon-more-outline",
           },
           {
             class: "el-icon-s-check",
           },
           {
             class: "el-icon-tickets",
           },
           {
             class: "el-icon-s-goods",
           },
           {
             class: "el-icon-document-remove",
           },
           {
             class: "el-icon-warning",
           },
           {
             class: "el-icon-warning-outline",
           },
           {
             class: "el-icon-question",
           },
           {
             class: "el-icon-info",
           }
         ]
       }
     },
   
     //当页面加载时获取数据
     created() {
       this.fetchData()
     },
   
     methods: {
       //调用api层获取数据库中的数据
       fetchData() {
         //调用api中的方法查询所有菜单
         api.findMenuNodes().then(res=>{
           //给sysMenuList赋值
           this.sysMenuList = res.data;
         });
       },
   
       //根据id删除数据
       removeDataById(id) {
         // debugger
         this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
           confirmButtonText: '确定',
           cancelButtonText: "取消",
           type: 'warning'
         }).then(() => { // promise
           // 点击确定，远程调用ajax
           return api.delete(id);
         }).then((response) => {
           this.fetchData()
           this.$message({
             type: 'success',
             message: response.message
           })
         }).catch(() => {
            this.$message.info('取消删除')
         })
       },
 
   
       //弹出添加表单
       add(row){
     
         //设置菜单类型不可点击
         this.typeDisabled = true
         //设置添加表单的标题
         this.dialogTitle = '添加下级节点'
         //展示添加节点的表单
         this.dialogVisible = true
   
         this.sysMenu = Object.assign({}, defaultForm)
         // this.sysMenu.id = ''
         if(row) {
           //设置要添加菜单或按钮的父id为当前节点的id
           this.sysMenu.parentId = row.id
           this.sysMenu.parentName = row.name
           if(row.type === 0) {
             //添加菜单
             this.sysMenu.type = 1
             this.typeDisabled = false
             this.type0Disabled = false
             this.type1Disabled = false
             this.type2Disabled = true
           } else if(row.type === 1) {
             //添加按钮
             this.sysMenu.type = 2
           }
         } else {
           //添加目录
           this.dialogTitle = '添加目录节点'
           this.sysMenu.type = 0
           this.sysMenu.component = 'Layout'
           this.sysMenu.parentId = 0
         }
       },
   
       //编辑
       edit(row) {
         //弹出编辑的表单
         this.dialogVisible = true;
         //调用api中根据id查询的方法
         api.getById(row.id).then(res=>{
           //给sysMenu赋值
           this.sysMenu = res.data
         });
       },
   
       //添加或更新
       saveOrUpdate() {
         //隐藏添加或修改的表单
         this.dialogVisible = false;
         if(this.sysMenu.type === 0 && this.sysMenu.parentId !== 0) {
           this.sysMenu.component = 'ParentView'
         }
         if (!this.sysMenu.id) {
           this.save()
         } else {
           this.update()
         } 
       },
   
       //添加
       save() {
         //调用api中添加的方法
         api.save(this.sysMenu).then(res=>{
           this.$message.success(res.message);
           this.fetchData();
         });
       },
   
       //更新
       update() {
         //调用api中更新的方法
         api.update(this.sysMenu).then(res=>{
           this.$message.success(res.message);
           this.fetchData();
         });
       }
     }
   }
   </script>